1 /* 2 * Copyright (c) 2000-2001 Adaptec Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions, and the following disclaimer, 10 * without modification. 11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12 * substantially similar to the "NO WARRANTY" disclaimer below 13 * ("Disclaimer") and any redistribution must be conditioned upon 14 * including a substantially similar Disclaimer requirement for further 15 * binary redistribution. 16 * 3. Neither the names of the above-listed copyright holders nor the names 17 * of any contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * Alternatively, this software may be distributed under the terms of the 21 * GNU General Public License ("GPL") version 2 as published by the Free 22 * Software Foundation. 23 * 24 * NO WARRANTY 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 34 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGES. 36 * 37 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr> 38 * sym driver. 39 * 40 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $ 41 */ 42 #include "aic7xxx_osm.h" 43 #include "aic7xxx_inline.h" 44 #include "aic7xxx_93cx6.h" 45 46 static void ahc_dump_target_state(struct ahc_softc *ahc, 47 struct seq_file *m, 48 u_int our_id, char channel, 49 u_int target_id, u_int target_offset); 50 static void ahc_dump_device_state(struct seq_file *m, 51 struct scsi_device *dev); 52 53 /* 54 * Table of syncrates that don't follow the "divisible by 4" 55 * rule. This table will be expanded in future SCSI specs. 56 */ 57 static const struct { 58 u_int period_factor; 59 u_int period; /* in 100ths of ns */ 60 } scsi_syncrates[] = { 61 { 0x08, 625 }, /* FAST-160 */ 62 { 0x09, 1250 }, /* FAST-80 */ 63 { 0x0a, 2500 }, /* FAST-40 40MHz */ 64 { 0x0b, 3030 }, /* FAST-40 33MHz */ 65 { 0x0c, 5000 } /* FAST-20 */ 66 }; 67 68 /* 69 * Return the frequency in kHz corresponding to the given 70 * sync period factor. 71 */ 72 static u_int 73 ahc_calc_syncsrate(u_int period_factor) 74 { 75 int i; 76 77 /* See if the period is in the "exception" table */ 78 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { 79 80 if (period_factor == scsi_syncrates[i].period_factor) { 81 /* Period in kHz */ 82 return (100000000 / scsi_syncrates[i].period); 83 } 84 } 85 86 /* 87 * Wasn't in the table, so use the standard 88 * 4 times conversion. 89 */ 90 return (10000000 / (period_factor * 4 * 10)); 91 } 92 93 static void 94 ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo) 95 { 96 u_int speed; 97 u_int freq; 98 u_int mb; 99 100 speed = 3300; 101 freq = 0; 102 if (tinfo->offset != 0) { 103 freq = ahc_calc_syncsrate(tinfo->period); 104 speed = freq; 105 } 106 speed *= (0x01 << tinfo->width); 107 mb = speed / 1000; 108 if (mb > 0) 109 seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); 110 else 111 seq_printf(m, "%dKB/s transfers", speed); 112 113 if (freq != 0) { 114 seq_printf(m, " (%d.%03dMHz%s, offset %d", 115 freq / 1000, freq % 1000, 116 (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 117 ? " DT" : "", tinfo->offset); 118 } 119 120 if (tinfo->width > 0) { 121 if (freq != 0) { 122 seq_puts(m, ", "); 123 } else { 124 seq_puts(m, " ("); 125 } 126 seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); 127 } else if (freq != 0) { 128 seq_putc(m, ')'); 129 } 130 seq_putc(m, '\n'); 131 } 132 133 static void 134 ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m, 135 u_int our_id, char channel, u_int target_id, 136 u_int target_offset) 137 { 138 struct scsi_target *starget; 139 struct ahc_initiator_tinfo *tinfo; 140 struct ahc_tmode_tstate *tstate; 141 int lun; 142 143 tinfo = ahc_fetch_transinfo(ahc, channel, our_id, 144 target_id, &tstate); 145 if ((ahc->features & AHC_TWIN) != 0) 146 seq_printf(m, "Channel %c ", channel); 147 seq_printf(m, "Target %d Negotiation Settings\n", target_id); 148 seq_puts(m, "\tUser: "); 149 ahc_format_transinfo(m, &tinfo->user); 150 starget = ahc->platform_data->starget[target_offset]; 151 if (!starget) 152 return; 153 154 seq_puts(m, "\tGoal: "); 155 ahc_format_transinfo(m, &tinfo->goal); 156 seq_puts(m, "\tCurr: "); 157 ahc_format_transinfo(m, &tinfo->curr); 158 159 for (lun = 0; lun < AHC_NUM_LUNS; lun++) { 160 struct scsi_device *sdev; 161 162 sdev = scsi_device_lookup_by_target(starget, lun); 163 164 if (sdev == NULL) 165 continue; 166 167 ahc_dump_device_state(m, sdev); 168 } 169 } 170 171 static void 172 ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev) 173 { 174 struct ahc_linux_device *dev = scsi_transport_device_data(sdev); 175 176 seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", 177 sdev->sdev_target->channel + 'A', 178 sdev->sdev_target->id, (u8)sdev->lun); 179 180 seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); 181 seq_printf(m, "\t\tCommands Active %d\n", dev->active); 182 seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); 183 seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); 184 seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); 185 } 186 187 int 188 ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) 189 { 190 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; 191 struct seeprom_descriptor sd; 192 int have_seeprom; 193 u_long s; 194 int paused; 195 int written; 196 197 /* Default to failure. */ 198 written = -EINVAL; 199 ahc_lock(ahc, &s); 200 paused = ahc_is_paused(ahc); 201 if (!paused) 202 ahc_pause(ahc); 203 204 if (length != sizeof(struct seeprom_config)) { 205 printk("ahc_proc_write_seeprom: incorrect buffer size\n"); 206 goto done; 207 } 208 209 have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); 210 if (have_seeprom == 0) { 211 printk("ahc_proc_write_seeprom: cksum verification failed\n"); 212 goto done; 213 } 214 215 sd.sd_ahc = ahc; 216 #if AHC_PCI_CONFIG > 0 217 if ((ahc->chip & AHC_PCI) != 0) { 218 sd.sd_control_offset = SEECTL; 219 sd.sd_status_offset = SEECTL; 220 sd.sd_dataout_offset = SEECTL; 221 if (ahc->flags & AHC_LARGE_SEEPROM) 222 sd.sd_chip = C56_66; 223 else 224 sd.sd_chip = C46; 225 sd.sd_MS = SEEMS; 226 sd.sd_RDY = SEERDY; 227 sd.sd_CS = SEECS; 228 sd.sd_CK = SEECK; 229 sd.sd_DO = SEEDO; 230 sd.sd_DI = SEEDI; 231 have_seeprom = ahc_acquire_seeprom(ahc, &sd); 232 } else 233 #endif 234 if ((ahc->chip & AHC_VL) != 0) { 235 sd.sd_control_offset = SEECTL_2840; 236 sd.sd_status_offset = STATUS_2840; 237 sd.sd_dataout_offset = STATUS_2840; 238 sd.sd_chip = C46; 239 sd.sd_MS = 0; 240 sd.sd_RDY = EEPROM_TF; 241 sd.sd_CS = CS_2840; 242 sd.sd_CK = CK_2840; 243 sd.sd_DO = DO_2840; 244 sd.sd_DI = DI_2840; 245 have_seeprom = TRUE; 246 } else { 247 printk("ahc_proc_write_seeprom: unsupported adapter type\n"); 248 goto done; 249 } 250 251 if (!have_seeprom) { 252 printk("ahc_proc_write_seeprom: No Serial EEPROM\n"); 253 goto done; 254 } else { 255 u_int start_addr; 256 257 if (ahc->seep_config == NULL) { 258 ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), 259 GFP_ATOMIC); 260 if (ahc->seep_config == NULL) { 261 printk("aic7xxx: Unable to allocate serial " 262 "eeprom buffer. Write failing\n"); 263 goto done; 264 } 265 } 266 printk("aic7xxx: Writing Serial EEPROM\n"); 267 start_addr = 32 * (ahc->channel - 'A'); 268 ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, 269 sizeof(struct seeprom_config)/2); 270 ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, 271 start_addr, sizeof(struct seeprom_config)/2); 272 #if AHC_PCI_CONFIG > 0 273 if ((ahc->chip & AHC_VL) == 0) 274 ahc_release_seeprom(&sd); 275 #endif 276 written = length; 277 } 278 279 done: 280 if (!paused) 281 ahc_unpause(ahc); 282 ahc_unlock(ahc, &s); 283 return (written); 284 } 285 286 /* 287 * Return information to handle /proc support for the driver. 288 */ 289 int 290 ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) 291 { 292 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; 293 char ahc_info[256]; 294 u_int max_targ; 295 u_int i; 296 297 seq_printf(m, "Adaptec AIC7xxx driver version: %s\n", 298 AIC7XXX_DRIVER_VERSION); 299 seq_printf(m, "%s\n", ahc->description); 300 ahc_controller_info(ahc, ahc_info); 301 seq_printf(m, "%s\n", ahc_info); 302 seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", 303 ahc->scb_data->numscbs, AHC_NSEG); 304 305 306 if (ahc->seep_config == NULL) 307 seq_puts(m, "No Serial EEPROM\n"); 308 else { 309 seq_puts(m, "Serial EEPROM:\n"); 310 for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { 311 if (((i % 8) == 0) && (i != 0)) { 312 seq_putc(m, '\n'); 313 } 314 seq_printf(m, "0x%.4x ", 315 ((uint16_t*)ahc->seep_config)[i]); 316 } 317 seq_putc(m, '\n'); 318 } 319 seq_putc(m, '\n'); 320 321 max_targ = 16; 322 if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) 323 max_targ = 8; 324 325 for (i = 0; i < max_targ; i++) { 326 u_int our_id; 327 u_int target_id; 328 char channel; 329 330 channel = 'A'; 331 our_id = ahc->our_id; 332 target_id = i; 333 if (i > 7 && (ahc->features & AHC_TWIN) != 0) { 334 channel = 'B'; 335 our_id = ahc->our_id_b; 336 target_id = i % 8; 337 } 338 339 ahc_dump_target_state(ahc, m, our_id, 340 channel, target_id, i); 341 } 342 return 0; 343 } 344